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Basic Field Epidemiology

Basic Field Epidemiology. Session 9 – Collecting data and counting cases. In this session we will talk about:. How to collect data and count cases of disease. Activity. Task for everyone to do: Now we understand what a case definition is –

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Basic Field Epidemiology

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  1. Basic Field Epidemiology Session 9 – Collecting data and counting cases

  2. In this session we will talk about: • How to collect data and count cases of disease

  3. Activity Task for everyone to do: Now we understand what a case definition is – 1. How might you go about collecting information about cases and non-cases?

  4. Video • Show recorded PowerPoint file for Session 9

  5. After watching the recorded PowerPoint In this video we learnt about • How to collect data on cases and non-cases Task for everyone to do: • Revisit your ideas to questions prior to the video. • Have your views changed?

  6. Group activity – Investigation of FMD in a Thai villageBackground information Village in Lampang Province with 91 households owning cattle (beef cattle and buffalo). Outbreak reported to authorities on 29 January. Investigation team visited and collected detailed information on the progression of the outbreak (typed as Asia 1). There has been some vaccine use in the past (type O vaccine) but only few cattle were vaccinated.

  7. Group activity –FMD in a Thai villageusing case & non-case data We can use case & non-case data to produce % estimates • How can we use these estimates to assess disease occurrence and severity in different groups of animals? In a defined outbreak where the denominator is all animals at risk of getting the disease, the estimates are called attack rates (AR)

  8. Group activity – FMD in a Thai village • Are young animals more likely to get FMD than older animals?

  9. Group activity – FMD in a Thai village • Are young animals more likely to get FMD than older animals?

  10. In this session we talked about: • Ideas on how to collect data and count cases of disease

  11. Better animal health for Indonesia Learn new skills Key concepts of session 9 • Data on cases and non-cases comes from • Asking the farmer questions • Direct observation of signs of disease from the animal • Laboratory results Improve your job satisfaction Have fun

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